High risk pregnancy

Has anyone has or is having a high risk pregnancy?? If so how was it/or how is it going? What all goes on in a high risk pregnancy? My second born son is 3 1/2 months and last night I just found out I was pregnant by a pregnancy test. But I receive my depo shot last month on April 5th. The nurse gave me a test to make sure I wasn’t pregnant and it was negative. Just a little back story, my son was a preemie my uterus had ruptured. He was born at 33wks 1 day and stayed in the nicu for about 33/34 days. Doctors said that if I was to have another pregnancy, that they wouldn’t let me go pass a certain mark. And baby would have to be born early. But it’ll be high risk with my uterus being 70% damaged. I’m just waiting for the morning to hear back for my doctor on a blood test to see if I really am. I’m not going to lie I’m really nervous and scared asf.